<template>
  <div>
    <el-form ref="deptForm" :model="form" :rules="rules" label-width="120px">
      <el-form-item label="部门名称" prop="name">
        <el-input v-model="form.name" style="width:80%" placeholder="1-50个字符" />
      </el-form-item>
      <el-form-item label="部门编码" prop="code">
        <el-input v-model="form.code" style="width:80%" placeholder="1-50个字符" />
      </el-form-item>
      <el-form-item label="部门负责人" prop="manager">
        <el-select v-model="form.manager" style="width:80%" placeholder="请选择">
          <el-option
            v-for="item in EmployeesList"
            :key="item.id"
            :value="item.username"
            :label="item.username"
          />

        </el-select>
      </el-form-item>
      <el-form-item label="部门介绍" prop="introduce">
        <el-input v-model="form.introduce" style="width:80%" placeholder="1-300个字符" type="textarea" :rows="3" />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
        <el-button size="small" @click="$emit('close')">取消</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import { getEmployeesSimple } from '@/api/employess'
import { addDepartments, getDetailDepartments, updataDepartments } from '@/api/departments'
export default {

  name: 'VueHrDeptDialog',
  props: {
    id: {
      type: String,
      required: true
    },
    isEdit: {
      type: Boolean,
      required: true
    },
    originList: {
      type: Array,
      required: true
    }
  },

  data() {
    // 校验部门编码的唯一性
    const validCode = (rule, value, callback) => {
      // console.log(value, 'value')
      // console.log(this.originList, 'this.originList')
      let existCodeList = this.originList.map(item => item.code)
      console.log(existCodeList)
      // 编辑状态 先移除自己的编码
      if (this.isEdit) {
        existCodeList = this.originList.filter(item => item.id !== this.id).map(item => item.code)
      }
      if (existCodeList.includes(value)) {
        // 编码已存在 抛出错误 提醒用户
        callback(new Error(`部门编码：${value}已存在`))
      } else {
        callback() // 放行
      }
    }
    // 校验部门名称的唯一性
    const validName = (rule, value, callback) => {
      console.log(this.id) // 新增 那么this.id 就是父部门的id 作为子部门的pid值
      let existNameList = this.originList.filter(item => item.pid === this.id).map(item => item.name)
      console.log(existNameList)
      if (this.isEdit) {
        // 所有部门的数据 originList
        // 在所有部门中找到当前编辑的部门数据对象
        const curDepartment = this.originList.find(item => item.id === this.id)
        const pid = curDepartment.pid
        // 所有兄弟部门的pid是一样的 找到索引的兄弟 包括自己
        const brothers = this.originList.filter(item => item.pid === pid)
        // 排除自己
        existNameList = brothers.filter(item => item.id !== this.id).map(item => item.name)
      }
      if (existNameList.includes(value)) {
        // 名称已存在 抛出错误 提醒用户
        callback(new Error(`部门名称：${value}已存在`))
      } else {
        callback()
      }
    }

    return {

      form: {
        name: '',
        code: '',
        introduce: '',
        manager: ''

      },
      EmployeesList: [],
      rules: {
        name: [
          { required: true, message: '请输入部门名称', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入长度1·50的字符', trigger: 'blur' },
          { validator: validName, trigger: 'blur' }

        ],
        code: [
          { required: true, message: '请输入部门编码', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入长度1·50的字符', trigger: 'blur' },
          { validator: validCode, trigger: 'blur' }
        ],
        introduce: [
          { required: true, message: '请输入部门介绍', trigger: 'blur' },
          { min: 1, max: 300, message: '请输入长度1·300的字符', trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '请选择部门负责人', trigger: ['blur', 'change'] }
        ]
      }

    }
  },
  // 解决数据不更新方式3 使用watch侦听id的变化
  // watch: {
  //   'id': function(newval, oldval) {
  //     this.loadDetailDepartments()
  //   }
  // },
  created() {
    this.loadEmployeesSimple()
    // 如果是编辑 才调用函数进行回显
    if (this.isEdit) {
      this.loadDetailDepartments()
    }
  },
  methods: {
    resetForm() {
      // 重置表当的校验规则和数据
      this.$refs.deptForm.resetFields()
    },
    async loadDetailDepartments() {
      try {
        const res = await getDetailDepartments(this.id)
        this.form = res.data
      } catch (error) {
        console.log(error)
      }
    },
    async loadEmployeesSimple() {
      const res = await getEmployeesSimple()
      console.log(res)
      if (res.code === 10000) {
        this.EmployeesList = res.data
      }
    },
    hSubmit() {
      this.doAdd()
      // 兜底校验
      this.$refs.deptForm.validate(valid => {
        if (!valid) return // 校验失败
        this.isEdit ? this.doEdit() : this.doAdd()
      })
    },
    // 编辑部门
    async doEdit() {
      try {
        const res = await updataDepartments(this.form)
        if (res.code !== 10000) return this.$message(res.message)
        this.$message.success(res.message)
        // 重新渲染数据 关闭弹框
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    async doAdd() {
      try {
        const res = await addDepartments({ ...this.form, pid: this.id })
        // console.log(res, 'addDepartments')
        if (res.code !== 10000) return this.$message(res.message)
        this.$message.success(res.message)
        // 重新渲染数据 关闭弹框
        this.$emit('success')
      } catch (error) {
        // console.log(error)
        this.$message.error(error)
      }
    }
  }
}

</script>
